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Cushion|Lab Grown|IGI

3.15ct D VVS1 Cushion Lab Grown Diamond

ID • D/VVS1 • IGI LG819661498

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819661498

Diamond specifications and retailer prices

From £572 GBP
$766 USD
As of October 30, 2026
Save £1,773 GBP (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,045 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.15ct lab-grown cushion diamond

This 3.15ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG819661498 or 819661498. Listed at 18 retailers as of October 26, 2026, with a 310% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.15
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819661498
Dimensions10.56 × 7.39 × 4.77 mm
L/W Ratio1.43
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.56 mm7.39 mm3.15 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819661498
Side View
Table 65.0%Crown 39°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 64.5%

Caratlytics Score

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A+
Exceptional
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,045 GBP|Low: £572 GBP|High: £3,045 GBP|Avg: £1,421 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 10£572 GBP
Retailer 9£605 GBP
Retailer 4£739 GBP
Retailer 2£849 GBP
Retailer 6£881 GBP
Retailer 15£928 GBP
Retailer 12£952 GBP
Retailer 8£1,360 GBP
Retailer 16£1,380 GBP
Retailer 13£1,579 GBP
Retailer 7£1,854 GBP
Retailer 17£1,930 GBP
Retailer 11£1,997 GBP
Retailer 14£2,043 GBP
Retailer 3£2,116 GBP
Retailer 5£2,345 GBP
Rare Carat£3,045 GBP

19 data points across 17 retailers

18 retailers£572 GBP to £2,345 GBP

A+
Cheapest Retailer
-
£572 GBP
$766 USD
Final sale: no returns
Retailer 2
-
£605 GBP
$810 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
£739 GBP
$990 USD
View
A
Retailer 4
-
£849 GBP
$1,138 USD
View
A
Retailer 5
-
£881 GBP
$1,181 USD
View
A
Retailer 6
-
£928 GBP
€1,184 EUR
View
A
Retailer 7
-
£952 GBP
View
Retailer 8
-
£1,360 GBP
A$2,803 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
£1,380 GBP
ZAR 29,870 ZAR
View
A
Retailer 10
-
£1,579 GBP
$2,116 USD
View
B+
Retailer 11
-
£1,854 GBP
View
B+
Retailer 12
-
£1,930 GBP
$2,586 USD
View
B+
Retailer 13
-
£1,997 GBP
SGD 3,615 SGD
View
B+
Retailer 14
-
£2,043 GBP
$2,737 USD
View
B+
Retailer 15
-
£2,116 GBP
$2,835 USD
View
B+
Retailer 16
-
£2,345 GBP
View
Retailer 17
-
£2,994 GBP
A$6,171 AUD
View
Price last confirmed 22 days ago
Most Expensive
Rare Carat
CN200-94A · Oct 21
£3,045 GBP
$4,080 USD
View
Price last confirmed 9 days ago
17 more retailers have this diamond
Prices start from £572 GBPSave up to £1,773 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A+
3.15ct Cushion
£572 GBP